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OpenStudy (anonymous):
When using the binomial formula, which of the following is a correct step in the expansion of (x+y)^4?
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Nnesha (nnesha):
allowed to use pascal's triangle ?
OpenStudy (anonymous):
yes
Nnesha (nnesha):
alright great so because exponent is 4 we need to look at 4th row |dw:1439831930473:dw| exponent of first star from 4 to 0 and 2nd one start from 0 to 4
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